Street-lamp.



No. 697,7i7. Patented Apr. I5, |902.

J. C. HEINRITZ & J. W. MGCUEN.

STREET LAMP.

(Application med sept' 21, 1901.)

2 Sheets-Sheet I.

(No Model.)

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No. 697,7l7. Patentd Apr. I5, |902.

J. C. HEINBITZ J. W. MCCUEN.

STREET LAMP.

(Application Bled Sept. 21, 1961.) (No Model.) 2 Sheets--Sheet 2.

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JOHN O. HEINRITZ AND JAMES VATSON MCOUEN, lOF BALTIMORE, MARY- LAND,ASSIGNORS OF ONE-THIRD TO RICHARD H. JOHNS, OF BALTIMORE, MARYLAND.

STREET- LAM P'.

i SPECIFICATION forming part of Letters Patent No. 697,717, dated April15, 1902 Application tiled September 21,1901. Serial No. 76,016. (Nomodel.)

To @ZZ wwm may concern: dome 14 is seated and hinged bya base-ring 15 5oBe it known that We, JOHN C. HEINRITZ upon thering 10. A convexreflector 16 is and JAMES VATSON MCOUEN, citizens of the seated andhangs by a rim 1'7 upon the rim United States, residing at Baltimore,`inthe of the globe, and a drafttube 18 passes 5 State of' Maryland, haveinvented certain new through a central opening in the reflector and anduseful Improvements in Street-Lamps, of is suspended therefrom by a ring19, clamped 55 which the following is a specification. upon the outerWalls of the tube, and forms The accompanying drawings illustrate ourthereby a seat for the tube and closes the improvementinhydrocarbonlampsf'orstreetjoint at the reflector-opening. The draft- 1o lighting,and the particular matters of novtube extends above the reflector, andthe adelty therein will be set out in the claims apjustablering-clampsuspendingthe tube from 6o pended hereto. the upper side ofthe refiector renders it con- In the drawings, Figure 1 represents avenientto raise and lower thedraft-tube from street-lamp embodying ourimprovement. the dome-space. Moreover, it Will be noted I5 Fig. 2 is avertical section of the burner part that the draft-tube telescopes withthe burnerof the lamp. Fig. 3 is a like View of the chimney 6, and thetube being of greater di- 65' globe part of the lamp. ameter than thechimney leaves a space be- The lamp shown is of two slidable frame tweenthe outer walls of the chimney and the parts to allow the globe-carryingframe part inner walls of the tube and forms thereby a 2o to be liftedfree of the burner; but our irndraft-space 25 to reinforce the usualdraft at provements are not confined to the particuthe base of theburner-chimney, giving there- 7e lar lamp construction-shown, and abrief deby an increased draft through the mantle and scription is onlydeemed necessary to show a more complete combustion Within the mantheapplication of our improvements to a tle and a better light.l

25 street-lamp in which the fixed part of the For adjusting thedraft-tube it is only neclamp-frame is formed by the standards 1 1essary to turn back the Ventilating-dome, lift 75 and the base-socket 2,the burner 3 being the tube up, and set the clamp-band nearer to fixedbetween the standards and is provided or farther from the upper end ofthe tube, so with the usual adjustable needle-valve for that it willform a greater or less prolonga- 3o regulating the feed of the vapor andwith the tion of the burner-chimney, and in any adoil-supply branch pipe4. A mantle 5 is susjustment of the draft-tube it maintains its 8opended over the burner, and a chimney 6, telescoping connection with theburner-chimseated upon the burner, incloses the mantle. ney and extendsabove the reflector. This A ring-tank S, fixed on the upper ends of theway'of suspending the draft-tube from the 3 5 standards, supplies'oil tothe burner through refiector gives a true central seating to said one ofthe standards, the supply being contube in its telescoping relation tothe burner- 8:' trolled by the cock 7. Rods 9 9 are fixed to chimney,and the projection of the tube and rise from bosses 22 22 on thestandards through the ventilator prevents the diusion and form guidesfor the globe-containing of the products of combustion upon the globe-4o frame part. Walls and the walls of the reector.

10 is a ring which constitutes-the movable A table 24, supported on thestandards, 9o frame part, and from it depend tubes 2O 20, forms a seatfor and closes the bottom of the which are slidable over the rods 9 inraising globe. and lowering the upper lamp part, said tubes The upperframe structure is lifted with 45 depending from bosses 21 21 on theouter the globe and the draft-tube to uncover the walls of the ring 10.The ring has an inner mantle and the chimney, and for this pur- 95 ledge11, on which the globe 12 is suspended pose the length of the rods 9will be suiiicient by a rim 13, and an outer ledge 23, by which to givea lift of about six inches. When the the ring is seated upon thooil-tank. The globe is so lifted, the tubes 20 Will pass free of and besupported on spring-detents 26, fastened on the rods, to hold up themovable. globe-carrying frame part.

We claim- 1. In a lamp and in combination, a burner, a tank forsupplying oil thereto, a globe and a reflector having a central opening,a draft- ,Y tube extending through the reflector, and af ring-clampmovable on the outer walls of the tube, freely seated upon the innerwall of the reflectorclosing the joint around its central opening andfreely suspending said tube from the reflector. p

2. In a lamp and in combination, a burner, a tank, for supplying oilthereto, a chimneyL

